Progress on 2018.11
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18d07e81db
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0cff916625
@ -23,26 +23,25 @@ func main() {
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serial: Atoi(os.Args[1]),
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fuelLevels: make(map[string]int),
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}
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fmt.Println(timeMachine.calcSquareFuelLevel(90, 269, 16))
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fmt.Println(timeMachine.getSquareFuelLevel(283, 169, 13))
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os.Exit(0)
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highest := MinInt
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highestX, highestY := 0, 0
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highestSize := 1
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for size := 1; size <= 20; size++ {
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fmt.Println(size)
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highestX, highestY, highestSize := 0, 0, 1
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for size := 1; size <= 13; size++ {
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fmt.Println("=", size, "=")
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for i := 0; i < 300-size; i++ {
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for j := 0; j < 300-size; j++ {
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w := timeMachine.getSquareLevel(i, j, size)
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w := timeMachine.getSquareFuelLevel(i, j, size)
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if w > highest {
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highestX, highestY = i, j
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highest = w
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highestSize = size
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highest = w
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fmt.Printf("New Highest: %d,%d,%d : %d\n", highestX, highestY, highestSize, highest)
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}
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}
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}
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}
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fmt.Print(highestX, ",", highestY, ",", highestSize, " : ", highest, "\n")
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fmt.Printf("Highest: %d,%d,%d : %d\n", highestX, highestY, highestSize, highest)
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}
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type TimeMachine struct {
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@ -57,34 +56,30 @@ func (t *TimeMachine) getKeyForSquare(x, y, size int) string {
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return bx + "," + by + "," + bs
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}
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func (t *TimeMachine) setSquareLevel(x, y, size, val int) {
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t.fuelLevels[t.getKeyForSquare(x, y, size)] = val
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}
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func (t *TimeMachine) getSquareLevel(x, y, size int) int {
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key := t.getKeyForSquare(x, y, size)
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if ret, ok := t.fuelLevels[key]; !ok {
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t.fuelLevels[key] = t.calcSquareLevel(x, y, size)
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return t.fuelLevels[key]
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} else {
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return ret
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func (t *TimeMachine) getSquareFuelLevel(x, y, size int) int {
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k := t.getKeyForSquare(x, y, size)
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if v, ok := t.fuelLevels[k]; ok {
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return v
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}
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}
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func (t *TimeMachine) calcSquareLevel(x, y, size int) int {
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var ret int
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if size == 1 {
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return t.calcFuelLevel(x, y)
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}
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ret := t.getSquareLevel(x, y, size-1)
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for wx := x; wx < wx+size; wx++ {
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ret += t.getSquareLevel(wx, y+size-1, 1)
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}
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for wy := y; wy < wy+size-1; wy++ {
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ret += t.getSquareLevel(x+size-1, wy, 1)
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ret = t.calcFuelLevel(x, y)
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} else {
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ret = t.getSquareFuelLevel(x, y, size-1)
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// Add the right-most cells
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for i := 0; i < size; i++ {
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ret += t.calcFuelLevel(x+(size-1), y+i)
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}
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// Add the bottom cells
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for i := 0; i < size-1; i++ {
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ret += t.calcFuelLevel(x+i, y+(size-1))
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}
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}
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t.fuelLevels[k] = ret
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return ret
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}
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// calcFuelLevel calculates one cells fuel level
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func (t *TimeMachine) calcFuelLevel(x, y int) int {
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rackId := x + 10
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startingLevel := rackId * y
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@ -99,11 +94,12 @@ func (t *TimeMachine) calcFuelLevel(x, y int) int {
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return ret
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}
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// calcSquareFuelLevel calculates all cells from x, y -> x+size, y+size
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func (t *TimeMachine) calcSquareFuelLevel(x, y, size int) int {
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var ret int
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for i := 0; i < size; i++ {
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for j := 0; j < size; j++ {
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ret += t.calcFuelLevel(i, j)
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ret += t.calcFuelLevel(x+i, y+j)
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}
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}
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return ret
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